I am a stroker and in the past, I have aimed exclusively at the 8th board at the arrows. I used to start with an aggressive ball and then switch to less aggressive balls as my trajectory dried up. In this way, I would use about three reactive balls during a 4-game match in addition to my spare ball and the results were so-so. Recently, a 220 average bowler suggested that, rather than change balls I should try changing the trajectory using the same ball, that is moving towards the middle as the lanes dry up. I tried changing my line progressively so that at the end of the 4th game, I am shooting at the 15th board (3rd arrow).In the last two matches, I've had very good results, shooting 15 points above my average. I wonder if this is just a chance happening or if it will last. I would like to know what most of you do.
Martin